Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What Causes the Abnormal Noise When the Envision Starts?

1 Answers

AddysonAnn

07/29/25 8:30pm

Reasons for abnormal noise when the Envision starts are as follows: 1. Hydraulic Tappet: Due to low oil pressure or wear on the hydraulic tappet itself, air enters the hydraulic tappet, resulting in a "clicking" sound. 2. Valve Clearance: Wear on the valve rocker arm causes excessive valve clearance. 3. Dirty Throttle Body: Continuous accumulation of sludge and carbon deposits leads to a dirty throttle body. 4. Carbon Canister Solenoid Valve Operation Sound: This is a normal sound, and you can continue to use it. If the sound is too loud, it is recommended to check it at a 4S store. Below are relevant details about the Envision: 1. Exterior: In terms of appearance, the 2020 Buick Envision appears more rugged and imposing. The new wing-shaped chrome trim runs through the LED wing-shaped headlights, widening the horizontal visual effect. The dynamic front bumper design and three-dimensional silver lower guard create a full and powerful front end. The rear also adopts a three-dimensional wing-shaped design, with the chrome trim connected to the taillights, paired with integrated dual exhaust pipes to enhance the sporty feel. 2. Powertrain: The 2020 Buick Envision offers a 2.0T SIDI direct-injection turbocharged engine paired with a 9-speed HYDRA-MATIC intelligent transmission and a 1.5T SIDI direct-injection turbocharged engine paired with a 7-speed DCG PLUS intelligent dual-clutch transmission.

Was this review help?

14

4

Share

More Forum Discussions

Will the car dash cam detect a very light touch?

A very light touch will not be recorded by the dash cam. The functions of a dash cam: To protect the legitimate rights and interests of drivers. In case of a scrape or collision with pedestrians crossing the road or cyclists and motorcyclists, there might be extortion attempts. With a dash cam, drivers can provide valid evidence by replaying the recorded footage, making the accident responsibility clear at a glance. This enables traffic police to handle the accident quickly and accurately; it not only allows for a quick evacuation of the scene to restore traffic but also preserves valid evidence of the incident, creating a safe and smooth traffic environment. Points to note about dash cams: Such as the clarity of the image, which is the most intuitive functional experience during use. When the video from the dash cam cannot provide clear feedback, the overall user experience is poor. Factors affecting clarity include the frame rate of the image and the aperture.

Can I Switch from Manual to Automatic Transmission Midway Through Learning?

It is possible to switch from manual to automatic transmission midway through learning. You can change to automatic transmission before taking the Subject 2 test. Introduction to Manual Transmission License: This refers to the C1 license. The C1 driver's license allows driving small cars, mini trucks, mini passenger vehicles, and light, small, mini special-purpose vehicles. It also permits driving C2, C3, and C4 vehicle types. C2 refers to automatic transmission vehicles. Introduction to Automatic Transmission License: This refers to the C2 license. The C2 license only allows driving small automatic transmission cars, mini automatic transmission trucks, mini automatic transmission passenger vehicles, and light vehicles. However, it does not permit driving manual transmission vehicles. The C2 test items are the same as those for C1, but Subject 3 is relatively easier because automatic transmission vehicles do not require frequent gear shifting and clutch operation, making it easier for beginners to get started.

Should the transmission fluid be replaced if the transmission is flooded?

It is recommended to replace both the transmission fluid and differential oil after the transmission is flooded. Hazards of not replacing the transmission fluid: 1. Damage to the transmission shift control mechanism; 2. Abnormal wear of gears and clutch plates inside the transmission; 3. Impaired normal operation of the transmission, leading to damage of the transmission valve body. Transmission fluid is different from engine oil. Although both serve a lubricating function, their specific roles differ and should not be confused. Differences: Engine oil is the lubricant for the engine system, possessing properties such as oxidation resistance, anti-wear, and anti-corrosion. Transmission fluid, on the other hand, is primarily used to keep the gear system clean and extend the service life of internal transmission components. Due to the distinct structures and operating environments of transmissions and engines, transmission fluid cannot be used as engine oil, nor can engine oil be used as transmission fluid.

Where are the turn signals required in Subject 2?

The places where turn signals are required in Subject 2 are: 1. Turn on the left turn signal when starting the vehicle; 2. Turn on the right turn signal when starting on the slope for fixed-point parking; 3. Turn on the left turn signal when starting after fixed-point parking; 4. Turn on the right turn signal when the vehicle passes the parallel parking spot and prepares to park within 30 cm of the edge line for reversing; 5. Turn on the left turn signal for a right-angle turn; 6. Turn on the left turn signal before starting to reverse in parallel parking. Turn signals are important indicators used when a motor vehicle is turning to alert surrounding vehicles and pedestrians. The turn signal bulbs use xenon tubes, controlled by a single-chip microcomputer circuit, with alternating left and right flashing for continuous operation.

What are the reasons for the high beam of car headlights not working?

Car headlights high beam not working reasons are as follows: Circuit failure: Poor connection or looseness of the wiring, or connectors not being properly seated may cause this type of failure. Headlight lens aging: For some models, prolonged use can cause the headlight lens to age or crack, leading to light failure or insufficient brightness, necessitating headlight replacement. Incorrect headlight system angle: For some models, the high beam angle of the headlight system is incorrect. Refer to the relevant headlight adjustment section in the vehicle's user manual for specific adjustments, which provides detailed instructions. Headlight usage duration: Prolonged use (or quality issues) can cause poor sealing of the headlights, leading to water ingress, foreign objects, or dust accumulation that blocks the light, resulting in weak or insufficient brightness.

Can Used Cars Meeting China 5 Emission Standards Still Be Licensed?

Used cars meeting China 5 emission standards can be licensed. Definition of China 5: China's fifth-stage motor vehicle pollutant emission standards, abbreviated as China 5 standards, have emission control levels equivalent to Europe's currently implemented Euro 5 emission standards. The European Union has been enforcing these standards since 2009, which impose stricter limits on vehicle emissions such as nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter. Each upgrade from China 1 to China 4 has reduced single-vehicle pollution by 30% to 50%. Differences: Compared to China 4 standards, the new standards reduce nitrogen oxide emissions by 25% for light-duty vehicles and 43% for heavy-duty vehicles. Based on Shanghai's annual vehicle registration volume of approximately 350,000 units, it is estimated that annual new vehicles can reduce nitrogen oxide emissions by about 1,000 tons per year.

Trending Ranking

Does the new Vios come with a cigarette lighter?

How to Close the Front Hood of a Vehicle?

Why does the car navigation screen flicker on and off?

Can uneven car paint color be restored through polishing?

What does the car Sunny mean?

What is the reason for no air coming out in the external circulation mode?

How to Use the Dotted Line on the Rearview Mirror?

How many kilometers should a motorcycle be serviced?

How to open the hood of the new Focus?

What are the issues that beginners should pay attention to when driving on the highway?

More Forum Discussions

How Long Can a Car Run on the Highway in High Summer Temperatures?

Will the traffic police send an SMS to the car owner after a traffic violation?

At what voltage can a motorcycle battery no longer start the motorcycle?

What is the license plate code Wan C for?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.